Andrew Ivimey (Self - Narrator), Jason M. Barr (Self - Professor of Economics, Rutger University), Mark Houser (Self - Author, Multistories: 55 Antique Skyscrapers and the Busibess Tycoons Who Built Them), Terri Meyer Boake (Self - Prodessorof Architecture, University of Waterloo), Nicholas Ferroni (Self - History Teacher, Union High School, New Jersey), Sarah Lacy (Self - Associate Professor of Anthropology, California State University), Alain Robert (Self - 'The French Spiderman'), Walter Percy Chrysler (Self), Zaha Hadid (Self), William Le Baron Jenny (Self)